JPS58210212A - Settlement of pile - Google Patents
Settlement of pileInfo
- Publication number
- JPS58210212A JPS58210212A JP9367582A JP9367582A JPS58210212A JP S58210212 A JPS58210212 A JP S58210212A JP 9367582 A JP9367582 A JP 9367582A JP 9367582 A JP9367582 A JP 9367582A JP S58210212 A JPS58210212 A JP S58210212A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- excavation
- excavator
- hollow
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は大径で中空状に既製されている杭の沈設方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for sinking a large-diameter, hollow, ready-made pile.
中掘工法と称されている従来の沈設方法は、第１図に示
すように杭（１１の中空部（２）にオーガー（３１全挿
入して、このオーガー（３１會回転させることに工って
Ｋｔｌｌの下方の土全掘削し、オーガー（３１によって
揚土された掘削土？杭ｆｉｌの頭部から外に排土しなが
ら、抗（１１の下方全掘削して杭ｆｌｌｋ沈設するもの
である。As shown in Figure 1, the conventional undergrounding method, called the medium excavation method, involves completely inserting an auger (31) into the hollow part (2) of a pile (11), and rotating this auger (31 times) to complete the construction. Then excavate all the soil below the Ktll, and while discharging the excavated soil from the head of the pile fil by the auger (31), excavate the entire area below the pit (11) and sink the pile filk. .
そして大径の抗（４）の場合には、第２図のようにオー
ガー（５）の下部に、土圧抵抗にぶって拡開する攪拌部
材（６１・・・全役げて、抗（４）の下方の土をこの杭
（４）の断面にほぼ等しい範囲にわたって攪拌し、オー
ガー（５１の下部附近に例えばセメントミルクにベント
ナイト？混合し几掘削液全供給してこの貴拌作用に工っ
て士金泥土比し、沈設の進行に伴って杭（４）の中空部
（７）内金この泥土侶）に工って満ｔす工うにして、中
空部（７）から外に排出される排±でなるべくｌ」？く
すること［工って、ボイリング現象で防止し、杭（４）
の沈設が円滑に行われて充分な支持力が得られるように
し定工法全出願人は特願昭５４−０４４２２９号として
提案しているところであるつ
しかしこの工法において・は、多暖の掘削液全必要とす
るので、沈設コストが高くなると云う不利益がある。In the case of a large-diameter resistor (4), as shown in Figure 2, a stirring member (61) that expands against the earth pressure resistance is placed at the bottom of the auger (5). 4) The soil under the pile (4) is stirred over an area approximately equal to the cross section of this pile (4), and near the bottom of the auger (51), for example, a mixture of cement milk and bentonite is supplied and all of the drilling fluid is supplied to achieve this stirring action. As the construction progresses, the hollow part (7) of the pile (4) is filled with the inner part (7), and the hollow part (7) is filled with the hollow part (7). The amount of waste discharged should be reduced as much as possible [by construction, preventing the boiling phenomenon, and piles (4).
However, in this construction method, the use of hot drilling fluid is proposed by the applicant in Japanese Patent Application No. 54-044229. This has the disadvantage of increasing the cost of sinking.
そこでこの発明においてｄ１杭の中空部に中空面状の掘
削休業挿入してこの掘削体の回転動作にかきわめてｌし
くなるので経済的となるうえ、残つ之芯土部＋ｄ、沈設
作業におけるボイリング現象を防止するものである。Therefore, in this invention, a hollow surface-shaped excavation block is inserted into the hollow part of the d1 pile, which makes it extremely easy to rotate the excavation body, making it economical. This is to prevent the phenomenon.
そ１〜て１実施例？図にもとづいて説明すれば、第８図
の工うに円管状のケーシング（９）の外周部に螺旋状の
掘削片（ｌｌ’を固設して
掘削体圓とし、この掘削体圓の下端部にはこのケーシン
グ（９）の肉厚に近い長さの先端掘削刃力・・・全固設
し、又、適宜の開き角度に開閉動作のできる切削具ａ瞬
ヲ備えている撹拌装置（４）・・・全掘削体（２）の下
部に設ける。さらにケーシング（９）の外周に設げ交圧
入管（５）・・・から掘削液全注入管（１５）の下端及
び、例えばケーシング（９１に設けている噴出孔（９ａ
）・・・などから噴出するように祷りにする。そして、
掘削体（８）の・専結部Ｑ６＞ 全ｓ オーガーマシン
（５）に連締し、大径の杭（４１の中空部ｆ’７）ＬＦ
−掘削体Ｃ［ｌ）’に挿入してオーガーマシン・、ｉ′
ｎｒ、て工って掘消本刊を回転しながら圧入管μｓ）・
・・の下４及び噴出孔（９ａ）・・・刀）ら掘削匣會噴
出すれば、先端掘削刃力に工ってケー／ング（９）の肉
厚に相当する部分の土が掘目１］される。又、切削具１
３）・・・に工って掘削体Ｉの外周から杭（４１の外周
までの部分の土が掘削されてケーシング（９）の内孔部
（四に円柱状の芯土部Ｃ１ｌ’に残して中空円柱状の掘
削孔−が掘削され、掘削土と掘削液が切削具（１句・・
・にぶって混合攪拌されて泥土比し、杭全自重又は補足
荷重によって沈設するものである。Part 1-1 example? To explain based on the figure, a spiral excavation piece (ll') is fixed to the outer periphery of the cylindrical casing (9) shown in Fig. 8 to form an excavation body circle, and the lower end of this excavation body circle is There is a stirring device (4) equipped with a cutting tool (4) which is fully fixed and can open and close at an appropriate opening angle. )...Provided at the lower part of the entire excavation body (2).Furthermore, it is provided on the outer periphery of the casing (9) from the alternating pressure injection pipe (5)... to the lower end of the entire drilling fluid injection pipe (15), for example, the casing ( Nozzle hole provided in 91 (9a
)... etc. Make it a prayer that erupts from. and,
Dedicated part Q6 of excavation body (8)> All s Connected to auger machine (5), large diameter pile (hollow part f'7 of 41) LF
- Insert the auger machine into the excavation body C[l)', i'
nr, press-fit pipe μs) while rotating the manual.
If the excavation case is ejected from the bottom 4 and the spout hole (9a)..., the force of the tip excavation blade will cause the soil in the part corresponding to the wall thickness of the caning (9) to become excavated. 1] to be done. Also, cutting tool 1
3)..., the soil from the outer periphery of the excavated body I to the outer periphery of the pile (41) is excavated and left in the inner hole of the casing (9) (fourth columnar core soil C1l'). A hollow cylindrical borehole is excavated, and the excavated soil and drilling fluid are poured into the cutting tool (1 phrase...
・The pile is mixed and stirred, compared to muddy soil, and is settled by the pile's full weight or supplementary load.
孕示したように、ビン（２１）にて切削？２１．１９）
の基部（１８ａ）を切削片α１に枢着してこの切削具θ
Ｂ）街開閉自在に設け、この切削具αｍを＠４図（ロ）
のように閉じたうえ、ストッパ用のシリンダ（潤のピス
トン（２２ａ）ｉ突出させて、切削翼面が開かんとして
もその基＠１８ａ）がピストン（２２１１）に工って移
動止めされて切削７４ ｇｇ）を閉じ位置に保持するこ
とになる工うに−成し、又、ピストン（２２ａ） ｆ
Ｑ ４図（イ］のようにシリンダ吹１へ向って後退移動
させて掘削７行えば、切削具−に作用する土圧抵抗によ
ってこの切削ｇ （ｓ８＞が同図の工うにストップピン
俤）に当接するまで開くことになるものである。Cutting with bottle (21) as shown? 21.19)
The base (18a) of the cutting tool θ is pivotally connected to the cutting piece α1.
B) Install the cutting tool αm so that it can be opened and closed freely.
In addition, the cylinder for the stopper (Jun's piston (22a) i is made to protrude, and even if the cutting blade surface does not open, its base @ 18a) is machined into the piston (2211) to stop the cutting. 74 gg) in the closed position, and the piston (22a) f
Q: As shown in Figure 4 (a), if the cylinder is moved backwards towards blow 1 and excavation 7 is performed, the earth pressure resistance acting on the cutting tool causes this cutting g (s8> is the stop pin in the same figure) It will open until it touches the.
なお、図示例においては、拡開用のシリンダー全ケーシ
ング（９）に取付けて、そのピストン（２４ｍ ）ｋ突
出させて切削１１ｉ ！１３３２押動すれば、切削具ｌ
ａｌの拡開動作が確実となるようにしている０
勿論、この攪拌装置Ｉ４）は図示例のものに限られるも
のではなく、例えば全く機械的に切削具が開閉できる構
造のものなど種々のものｔ用いることができる。In the illustrated example, the expansion cylinder is attached to the entire casing (9), and its piston (24m) is made to protrude and cut 11i! 1332 If you push it, the cutting tool l
Of course, this stirring device I4) is not limited to the one shown in the illustration, and can be of various types, such as one with a structure in which the cutting tool can be opened and closed completely mechanically. t can be used.
そして、杭径１大小に変更した場合であっても、掘削体
（１１）は変えないで攪拌装置ａ→の切削具α８）の開
き度ｋＴ化させ°ることに工って対【［；させても良い
。Even if the pile diameter is changed to 1 size, the excavation body (11) is not changed and the opening degree of the cutting tool α8) of the stirring device a is changed to kT. You can let me.
この発明に係る杭の沈設方法は上述のように大径の抗（
４）の中空部（７１に挿入している中空筒状の掘削体＋
ｔｌ） ’ｒ回転せしめることに１つて杭（４）の下方
の土を、掘削体；１１）の内孔部（１８）に相当する円
柱状の芯を部１＋ｇ）２残して掘削するようにしている
ので、中空部（７１の内部のすべての土を排土している
沈設方法に比べれば、杭（４）の頭部からのこの排土破
がきわめてわづかとなって、掘削効率が良ぐなシ、沈設
作業時間が短縮されてコストも安価となり、又、残って
いる芯土部（１呻け、地下水によるボイリング現象會防
市できると共に、使用状煽ておける杭（鉛の沈下全阻止
するのに役立つものである。The method for sinking piles according to this invention is as described above.
4) Hollow part (hollow cylindrical excavation body inserted in 71 +
tl) 'rWhen rotating, excavate the soil below the pile (4) leaving a cylindrical core corresponding to the inner hole (18) of the excavation body (11) (1+g)2. Therefore, compared to the sinking method in which all the soil inside the hollow part (71) is removed, this removal of soil from the head of the pile (4) is extremely slow and the excavation efficiency is reduced. In addition, the time required for the submergence work is shortened and costs are reduced, and the remaining core soil (1) can be prevented from boiling caused by groundwater, and the piles that can be kept in use (lead sinking) can be prevented. This will help prevent it altogether.
又、攪拌装置（２）・・・音用いて掘削Ｋｉｎの外周外
方附近音大きく掘削すると某に、掘削液と掘削士全この
攪拌装置（揃・・・に工って攪拌して泥土ｆヒする工う
にした実施例のものにおいては、掘削体１の内孔部（ト
）に残った芯土邪１匍の外周外方の掘削孔…のみが掘削
されることになるので、掘削液の使装置は杭（４）の全
′＠（２）全掘削するものに比べてきわめて小喰となっ
て経済的であり、又、この掘削孔（イ）の内部は、泥土
比しているので、地下水のボイリング現象も防止できて
能率の良い沈設作業とすることができるのである。In addition, the stirring device (2)... makes a loud sound near the outer periphery of the excavation ring when excavating, and the drilling fluid and excavator all use this stirring device (equipped...) to stir the mud. In the embodiment in which the drilling is carried out, only the excavation hole outside the outer periphery of 1 liter of core soil remaining in the inner hole part (G) of the excavation body 1 is excavated, so the excavation fluid This equipment is economical as it is much smaller than the one that excavates the entire pile (4) (2), and the inside of this excavation hole (A) is comparatively muddy. Therefore, the boiling phenomenon of groundwater can be prevented and the undergrounding work can be done more efficiently.
第１図と第２図は大々、従来の沈設方法全示す縦断正面
図、第３図以降はこの発明の１実施例？符号説明
（１１（４）・−・・・杭 （２１（７１・
・・−・−中空部（３）（５１・・・・・・オーガー
＋６１・・・・・・攪拌部材（９）・・・・・・ケ
ーシング αト・・・・・掘削片（９ａ）・・・・
・・噴出孔 圓・・・・・・掘削体（功・・・・
・・先端掘削刃 ｑ：（１・・・・・・切削翼（１
３ａ）・・・・・・回動先端部 （ロ）・・・・・・
攪拌装置！１５）・・・・・・注入管 （１ｆ
ｌ）・・・・・・連結部（資）・−・・・・オーガーマ
シン （１８）・・・・・・内孔部Ｃ１噂・・・・・・
芯上部 （イ）・・・・・・掘削孔１２１）・
・・・・・ピン （２２１ｍ・・・・・・シ
リンダ（２２ａ ）（２４ａ）・・・・・・ピストン
（２）・・・・・・ストップビンＰ＃ 杵 出 願 人
日本コンクリート工業株式会社代理人升埋士 林
孝 吉
第４図
（イ）
第４図Figures 1 and 2 are longitudinal sectional front views showing the entire conventional submersion method, and Figures 3 and onwards are one embodiment of this invention? Code explanation (11 (4)...Pile (21 (71)
...--Hollow part (3) (51... Auger
+61... Stirring member (9)... Casing αt... Excavation piece (9a)...
・・Blowout hole ・・・Excavation body (Kō・・・・
... Tip drilling blade q: (1... Cutting blade (1
3a)...Rotating tip (b)...
Stirring device! 15)...Injection pipe (1f
l)...Connection part (capital)---Auger machine (18)...Inner hole C1 rumor...
Upper part of core (A)...Drilling hole 121)
...Pin (221m...Cylinder (22a) (24a)...Piston
(2)...Stop Bin P# Pestle Applicant Nippon Concrete Industry Co., Ltd. Agent Masuji Hayashi
Takayoshi Figure 4 (a) Figure 4
Claims (1)
に挿入している中空筒状の掘削体全回転せしめることに
よって、芯土部？残して掘削するようにしてなる杭の沈
設方法６When completely sinking a large-diameter, hollow pile, the hollow cylindrical excavation body inserted into the hollow part of the pile is fully rotated, allowing the core soil to be completely sunk. Pile installation method 6 by leaving the pile behind and excavating it
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9367582A JPS58210212A (en) | 1982-06-01 | 1982-06-01 | Settlement of pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9367582A JPS58210212A (en) | 1982-06-01 | 1982-06-01 | Settlement of pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58210212A true JPS58210212A (en) | 1983-12-07 |
Family
ID=14088974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9367582A Pending JPS58210212A (en) | 1982-06-01 | 1982-06-01 | Settlement of pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58210212A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2429229A (en) * | 2005-08-18 | 2007-02-21 | Seacore Ltd | Methods and apparatus for the installation of foundation piles |
| JP2013142271A (en) * | 2012-01-12 | 2013-07-22 | Penta Ocean Construction Co Ltd | Steel pipe sheet pile press-in method and press-in device |
-
1982
- 1982-06-01 JP JP9367582A patent/JPS58210212A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2429229A (en) * | 2005-08-18 | 2007-02-21 | Seacore Ltd | Methods and apparatus for the installation of foundation piles |
| JP2013142271A (en) * | 2012-01-12 | 2013-07-22 | Penta Ocean Construction Co Ltd | Steel pipe sheet pile press-in method and press-in device |
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